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# Copyright 2025 Shota FUJI <pockawoooh@gmail.com>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
# OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
#
# SPDX-License-Identifier: 0BSD
#
# Web frontend for git repositories, powered by legit (fork.)
# This module publishes public repositories managed by soft-serve.
# Every repository named "x/*" will be public.
# https://git.pocka.jp/legit.git

{
  config,
  lib,
  pkgs,
  ...
}:
let
  cfg = config.services.legit;

  package = if cfg.package != null then cfg.package else pkgs.legit-web;
in
{
  imports = [ ./soft-serve.nix ];

  options = {
    services.legit = {
      package = lib.mkOption {
        type = lib.types.nullOr lib.types.package;
        default = null;
      };

      port = lib.mkOption {
        type = lib.types.ints.unsigned;
        default = 5555;
      };

      domain = lib.mkOption {
        type = lib.types.str;
        default = "git.pocka.jp";
      };
    };
  };

  config = {
    home.packages = [ package ];

    xdg.configFile."legit/config.yaml" = {
      text = ''
        repo:
          scanPath: "${config.xdg.dataHome}/soft-serve/repos/x"
          readme:
            - "README"
            - "README.md"
            - "README.adoc"
            - "README.txt"
            - "ABOUT"
            - "ABOUT.md"
            - "ABOUT.adoc"
            - "ABOUT.txt"
          mainBranch:
            - "trunk"
            - "master"
            - "main"

        dirs:
          templates: "${package}/lib/legit/templates"
          static: "${package}/lib/legit/static"

        meta:
          title: "git.pocka.jp"
          description: "My personal projects"
          syntaxHighlight: true

        ui:
          footer:
            links:
              - text: Contact
                href: mailto:pockawoooh@gmail.com
              - text: Codeberg
                href: https://codeberg.org/pocka
              - text: Tangled
                href: https://tangled.org/pocka.jp
              - text: GitHub
                href: https://github.com/pocka
            poweredBy: true

        server:
          name: "${cfg.domain}"
          host: "127.0.0.1"
          port: ${builtins.toString cfg.port}
      '';
    };

    systemd.user.services.legit = {
      Unit = {
        Description = "legit, web frontend for git repositories.";
      };

      Service = {
        Type = "simple";
        Restart = "always";
        RestartSec = 1;
        ExecStart = "${package}/bin/legit --config=${config.xdg.configHome}/legit/config.yaml";
        Environment = "PATH=$PATH:${lib.makeBinPath [ pkgs.git ]}";
      };

      Install = {
        WantedBy = [ "default.target" ];
      };
    };
  };
}